Add docs changes

Author: CharlieL7

CHANGELOG.md

@@ -9,6 +9,7 @@ Full documentation for MIGraphX is available at
 
 * Added a dedicated logger for MIGraphX.
 * [Linux] Use HSA API to query number of chiplets for architectures where this is applicable (ex. gfx90a).
+* Added debug symbols for MIGraphX instructions such that parsed and compiled instructions can be tracked back to their ONNX origin node node with MIGRAPHX_ENABLE_DEBUG_SYMBOLS (#4626)
 
 ### Changed
 

docs/reference/MIGraphX-dev-env-vars.rst

@@ -514,6 +514,14 @@ Compilation tracing
 
       | Default: Quantization parameters aren't printed.
 
+  * - | ``MIGRAPHX_ENABLE_DEBUG_SYMBOLS``
+      | Adds parsing and propagating of debug symbols through compiler passes such that the origin of instructions
+      | can be more easily determined. For ONNX models, the debug symbols are the ONNX node names.
+      
+    - | ``1``: Enable parsing and propagating debug symbols.
+
+      | Default: Debug symbols are not parsed nor propagated.
+
 MLIR
 **************************
 

src/instruction.cpp

@@ -447,7 +447,7 @@ void instruction::print(std::ostream& os,
     if(ins->target_id != 0)
         os << ", target_id=" << ins->target_id;
 
-    // print debug symbols if enabled
+    // print debug symbols if they exist
     if(not ins->debug_symbols.empty())
     {
         os << " /* " << join_strings(ins->debug_symbols, ", ") << " */";